I’m playing the video but is has no audio.
I’ve tried playing the video on different computers and it still has no audio.
The sound is not in sync with the video.
Solution #1: Avoid using Windows Media Player.
Are you watching the video with Windows Media Player? Sound playback issues may be due to memory leakage in Windows. Reboot your computer or try playing the video with another application like VLC.
Download VLC →Solution #2: Playback directly from the desktop.
Are you playing directly back from the flash drive? Sound playback issues may result from flash drives being too slow. This will manifest as video stuttering or appearing out of sync. Copy the .mp4 from the flash drive to the desktop and then double click on the .mp4 on the desktop to open it with QuickTime Player.
Solution #3: Check audio connection from mic to camera.
Is the audio being fed into the h.264 encoder box instead of the camera? The cable connecting the mixer or microphone needs to be connected directly to the camera mic input or else there will be a delay between picture and audio due to camera processing.
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